High-voltage ceramic capacitor

Abstract

Disclosed is a high-voltage ceramic capacitor. The high-voltage ceramic capacitor comprises a capacitor core body, a first electrode, a second electrode, graphite heat dissipation sheets, aluminum oxide heat dissipation sheets, a first lead and a second lead; the capacitor core body adopts a cylindrical structure; the first electrode is arranged on the upper surface of the capacitor core body while the second electrode is arranged on the lower surface of the capacitor core body; the graphite heat dissipation sheets are arranged on the upper and lower surfaces of the capacitor core body; the aluminum oxide heat dissipation sheets are arranged on the surfaces of the upper and lower graphite heat dissipation sheets of the capacitor core body; the first lead runs through the graphite heat dissipation sheets and the aluminum oxide heat dissipation sheet on the upper surface of the capacitor core body to be connected with the first electrode; and the second lead runs through the graphite heat dissipation sheets and the aluminum oxide heat dissipation sheet on the lower surface of the capacitor core body to be connected with the second electrode. The heat dissipation effect of the high-voltage ceramic capacitor is greatly improved, and the probability of abrasion and electric leakage of the capacitor is lowered, thereby lowering probability of failure of the ceramic capacitor and prolonging the service life of the high-voltage ceramic capacitor.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a high-voltage ceramic capacitor. Background technique [0002] Ceramic capacitors are made by using ceramics as the dielectric, spraying silver on both sides of the ceramic substrate, and then firing the silver film at low temperature as the plate. Ceramic capacitors are divided into disc type, tube type, plate type, laminated type and other forms according to their shapes. Ceramic capacitors have high operating temperature, large specific capacity, good moisture resistance, small dielectric loss, and high capacitance. The temperature coefficient can be selected in a wide range and other advantages, and it is widely used in electronic circuits, and the amount is very considerable. [0003] High-voltage ceramic capacitors are capacitors potted with epoxy resin with dielectric ceramics as the core material. With the progress of the times and the development of science and tec...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-voltage ceramic capacitor aimed at the defects and deficiencies of the prior art, which can solve the problem that the heat of the current high-voltage ceramic capacitor is difficult to conduct out, causing the core body to be broken down and the outer seal layer to be easily worn and broken, resulting in capacitor leakage or fracture. failure defect

Images